"use strict";
const path = require("path");
const defaultSettings = require("./settings.js");

function resolve(dir) {
  return path.join(__dirname, dir);
}

const name = defaultSettings.title || "vue Admin Template"; // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 9528; // dev port
const Timestamp = new Date().getTime();
// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  publicPath: "/",
  outputDir: "dist",
  assetsDir: "static",
  lintOnSave: process.env.NODE_ENV === "development",
  productionSourceMap: false,
  devServer: {
    // https: true,
    port: port,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      "/api": {
        target: `http://122.152.196.46:88/api`,
        changeOrigin: true,
        pathRewrite: {
          "^/api": ""
        }
      }
    }
  },
  configureWebpack: {
    // 配置打包后的文件
    output: {
      filename: `static/js/[name].${process.env.VUE_APP_Version}.${Timestamp}.js`,
      chunkFilename: `static/js/[name].${process.env.VUE_APP_Version}.${Timestamp}.js`
    },
    name: name,
    resolve: {
      alias: {
        "@": resolve("src")
      }
    }
  },
  chainWebpack(config) {
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin("preload").tap(() => [
      {
        rel: "preload",
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        include: "initial"
      }
    ]);

    // when there are many pages, it will cause too many meaningless requests
    config.plugins.delete("prefetch");

    // set svg-sprite-loader
    config.module
      .rule("svg")
      .exclude.add(resolve("src/icons"))
      .end();
    config.module
      .rule("icons")
      .test(/\.svg$/)
      .include.add(resolve("src/icons"))
      .end().use("svg-sprite-loader").loader("svg-sprite-loader").options({
        symbolId: "icon-[name]"
      })
      .end();

    // set preserveWhitespace
    // config.module
    //   .rule("vue")
    //   .use("vue-loader")
    //   .loader("vue-loader")
    //   .tap(options => {
    //     options.compilerOptions.preserveWhitespace = true;
    //     return options;
    //   })
    //   .end();

    // config
    //   .when(process.env.NODE_ENV !== "development",
    //     config => {
    //       config
    //         .plugin("ScriptExtHtmlWebpackPlugin")
    //         .after("html")
    //         .use("script-ext-html-webpack-plugin", [{
    //         // `runtime` must same as runtimeChunk name. default is `runtime`
    //           inline: /runtime\..*\.js$/
    //         }])
    //         .end();
    //       config
    //         .optimization.splitChunks({
    //           chunks: "all",
    //           cacheGroups: {
    //             libs: {
    //               name: "chunk-libs",
    //               test: /[\\/]node_modules[\\/]/,
    //               priority: 10,
    //               chunks: "initial" // only package third parties that are initially dependent
    //             },
    //             elementUI: {
    //               name: "chunk-elementUI", // split elementUI into a single package
    //               priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
    //               test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
    //             },
    //             commons: {
    //               name: "chunk-commons",
    //               test: resolve("src/components"), // can customize your rules
    //               minChunks: 3, //  minimum common number
    //               priority: 5,
    //               reuseExistingChunk: true
    //             }
    //           }
    //         });
    //       // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
    //       config.optimization.runtimeChunk("single");
    //     }
    //   );
  },
  css: {
    loaderOptions: {
      sass: {
        // 三种那种可以选哪种
        prependData: `@import "@/styles/_varlable.scss";`
      }
    }
  }
};
